Finding the Fourth Proportional to 605,063.20, 907,594.80 and 290,135.20
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Solution
The fourth proportional to 605,063.20, 907,594.80 and 290,135.20 is: 435,202.80
Step by Step Solution
- Step 1: Write the proportion equation
605,063.20 : 907,594.80 = 290,135.20 : x - Step 2: Convert to fraction form
605,063.20/907,594.80 = 290,135.20/x - Step 3: Cross multiply
605,063.20x = 907,594.80 × 290,135.20 - Step 4: Simplify right side
605,063.20x = 263,325,198,816.96 - Step 5: Solve for x
x = 263,325,198,816.96/605,063.20 - Step 6: Final answer
x = 435,202.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.